There are few things more entertaining (and, often, disturbing) than watching folks dance on the Xbox Kinect system on games like Dance Central.

For those tapping their toes until Dance Central 2, there's a new app from AKQA called Dance*Cam, which lets you create your own music videos on the fly.

In fact, if your video looks especially fly, you can upload it to Facebook and challenge a friend, where two videos are mashed into one so others can vote on who busts a move best.

In my book THE ON-DEMAND BRAND, I look at how AKQA creates such amazing mobile apps for clients like Microsoft, Nike, Visa, Coca-Cola and many more. You can hear to excerpts from an interview with AKQA CEO Tom Bedecarre for the book (Part 1, Part 2,Part 3, Concl), where he talks about the agency's philosophy and approach to creating compelling brand experiences through digital channels.